u can either do it with paypal or usps.com--( before u start printing make sure ur printer has ink and paper and connected to ur computer.) i sometimes forget to look hehe..
anyways i print off usps
u go to that site- i made an account so it will be easy to look up histories and such.
then u put in the buyers address in the form .
and after everything is filled out correctly- u pay with a credit/debt card and hit print- dont close the window until u are positive the label print corectly

__________________
Oh Almighty God,Whose Great Power And Eternal
Wisdom Embraces The Universe,Watch Over All Policemen and Law Enforcement Officers.
Protect Them From Harm. Protect the Brave Men & Women,Grant Them Your Almighty Protection,Unite Them Safely With Their Families After Duty Has Ended.
Amen.